Improvement in cab-axle boxes



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IMPROVEMENT IN GAR-AXLE BOXES.

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TO ALL WHOM IT MAY CONCERN Be it known that I, JOSEPH HARRIS., of Dorchester, in the county of Norfolk, and MStateof Massachusetts, have invented `certain new and useful Improvements in Car-Axle Boxes; and I do heifeby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon. With reference to the drawings;

Figure 1 is a sectional view, the section cutting transversely to the axle.

Figure Slis a sectional view, the section plane cutting in the line ofthe axle.

Figure 4 is an external perspective view of the box and axle. l v

Figure 5 is a sectional view ofthe `neck of the axle and the removable exterior shoulder which takes the thrust of the box. i

Figure 2 is a view of one of the malny modifica-tions which may be made of the exterior shoulderand means' for holding it.

Like letters refer te the same or corresponding parts in all the views.

The car-axle a is furnished with the `supplemental or exterior journal b Withinthe box or case, and a shoulder, c, voutside ofthe box, and the removable shoulder d, also outside of the box, at the opposite end. The journal or end of the axle is necked down at e, to receive the removable collar or shoulder d, leaving the fast shoulder f asa supporter back for shoulder d. The axle-*box case g is fitted to play in the usu'al jaws, or otherwise connected to the car or truck-frame, and has a circular chamber. (See iig. 1.) This circular chamberencleses a series of rollers, h. The rollers a. have journals upon their ends, and to these journals is fitted a series of boxes or guides, z'. These guides have faces which are radial to the axle, and tho boxes or guides are of such length as to keepl the peripheries of therolls from contact with each other, they (the guides) bearing against each others radial faces, where they form a series of radial detached joints. The axle extends entirely through the box or case g by its necked portion e. The exterior or supplemental journal b bears on the series of rolls l within, while Vthey in turn bear without on the inner surface of the circular chamber. The supplemental jonrnal b` may be loose on the journal, butah'ad better be fast, so as to insure its turning with the axle and not upon it. A recess is formed in a seat, 7, and a washer, k, is interposed between it and the shoulder e. j The shoulder dis open on theside, as shown in iig; 5 so that it can be applied by slipping 'on tothe neck c insidcotthe shoulderf. A casing, k', covers it and the end of the axle. The end-thrust of the box comes uponshoulder c, the washer and seat j in one direction',` and upon the shoulders d and f, and the face` of` the box in. the opposite direction.

The parts may be made of such materials as are usually employed in the art.

Having described my improvement, what I claim as my invention, and desire to secure by Letters Patent, is as follows:

1. I claim the roller-guides with detached radial joints, substantially as described.

2. In combination with the system of rollers and bo'x g, I claim the construction of theaxle, with its extension e and shoulder d, as and for the purpose set forth.

JOSEPH HARRIS.

Witnesses:

hun D.. SPAULDING, D. N. B. CorrIN, Jr. 

